Failed to compile Fedora/RISCV kernel (5.4-rc3+) with sparsemem enabled:
fs/proc/kcore.c: In function 'read_kcore':
fs/proc/kcore.c:510:8: error: implicit declaration of function
'kern_addr_valid'; did you mean 'virt_addr_valid'?
[-Werror=implicit-function-declaration]
510 | if (kern_addr_valid(start)) {
| ^~~~~~~~~~~~~~~
| virt_addr_valid
Looking at other architectures I don't see kern_addr_valid being guarded by
CONFIG_FLATMEM.
Fixes: d95f1a542c3d ("RISC-V: Implement sparsemem")
Signed-off-by: David Abdurachmanov <[email protected]>
Tested-by: David Abdurachmanov <[email protected]>
---
arch/riscv/include/asm/pgtable.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
index 42292d99cc74..7110879358b8 100644
--- a/arch/riscv/include/asm/pgtable.h
+++ b/arch/riscv/include/asm/pgtable.h
@@ -428,9 +428,7 @@ static inline int ptep_clear_flush_young(struct
vm_area_struct *vma,
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
-#ifdef CONFIG_FLATMEM
#define kern_addr_valid(addr) (1) /* FIXME */
-#endif
extern void *dtb_early_va;
extern void setup_bootmem(void);
--
2.21.0
